2023 BMW 4 Series Gran Coupe 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series Gran Coupe
• Trim: M Sport
• Version: 2.0 420i M Sport Auto RWD Euro 6 (s/s) 5dr (181 bhp)
• Year: 2023
• Mileage: 43,973 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 4 Series Gran Coupe M Sport is advertised with 43,973 miles, approximately 15,600 above the typical mileage for its age. Priced at £28,956, it is advertised £2,445 above the AskCar estimate of £26,511. The AskCar estimate uses 1,170 UK dealer adverts for the BMW 4 Series Gran Coupe, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 6 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Ocean Plymouth, based in Plymouth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £2,445 (9%) over the AskCar estimate of £26,511.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 1,170 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 9 November 2026.

A 2023 BMW 4 Series Gran Coupe with the 2.0 petrol engine is typically advertised at £28,700: the median of the 66 for sale on AskCar, as of 9 November 2026.

Time on sale

AskCar first saw this 2023 BMW 4 Series Gran Coupe advertised 6 days ago. About half of 2023 BMW 4 Series Gran Coupe cars are gone from sale within a month of being advertised: 73 of the 138 first advertised between 9 July 2026 and 6 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £28,956. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 1 October 2027.

It has had one MOT, on 30 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 42,676 miles, which matches the advertised 43,973 miles.

Advertised mileage is about 15,600 miles higher than the median mileage of a 2023 BMW 4 Series Gran Coupe on AskCar.

Similar cars

34 other 2023 BMW 4 Series Gran Coupe M Sport 2.0 petrol automatic hatchbacks are for sale at UK dealers, from £22,995 to £32,490, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, black. Mileage: 44,250 miles. Price: £25,490, £3,466 less than this car. Dealer: Hanar Cars (UK) in Hoddesdon. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-f8022390aa70
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 40,672 miles. Price: £25,995, £2,961 less than this car. Dealer: Group 1 Chelmsford BMW in Chelmsford. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-b414a868e3c5
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, green. Mileage: 40,623 miles. Price: £26,421, £2,535 less than this car. Dealer: Vertu BMW Sunderland in Sunderland. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-2be1a16fda34

• The nearest: 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, blue, 47 miles from this car. Mileage: 28,874 miles. Price: £26,920, £2,036 less than this car. Dealer: Ocean Falmouth BMW in Falmouth. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-630bb6d06821